Finding the Fourth Proportional to 838,703.84, 1,157,459.94 and 631,601.48
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Solution
The fourth proportional to 838,703.84, 1,157,459.94 and 631,601.48 is: 871,646.68
Step by Step Solution
- Step 1: Write the proportion equation
838,703.84 : 1,157,459.94 = 631,601.48 : x - Step 2: Convert to fraction form
838,703.84/1,157,459.94 = 631,601.48/x - Step 3: Cross multiply
838,703.84x = 1,157,459.94 × 631,601.48 - Step 4: Simplify right side
838,703.84x = 731,053,414,038.36 - Step 5: Solve for x
x = 731,053,414,038.36/838,703.84 - Step 6: Final answer
x = 871,646.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.